Transcriptome analysis of HSV-1 infected dorsal root ganglia and large intestinal musculara
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ABSTRACT:
ORGANISM(S): Mus musculus
PROVIDER: GSE74215 | GEO | 2016/06/08
SECONDARY ACCESSION(S): PRJNA299571
REPOSITORIES: GEO
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Project description:Herpes simplex virus type 1 (HSV-1) is a 152 Kb double stranded DNA alpha-herpesvirus, which establishes long life latent infection in sensory neurons. Most of our knowledge regarding HSV-1 latency comes from in vivo studies using small animal models, mainly rodents and rabbits, which are not naturally infected by HSV-1. Furthermore, these animal models do not fully recapitulate the species specific effects of human HSV-1 infection. Human cellular models utilize trigeminal ganglia removed from cadavers or, alternatively, neuron-like cells derived from cancerous cell lines that do not fully reflect effects on normal human neurons. This limitation poses the need to develop an in vitromodel to investigate molecular details of the mechanisms underlying quiescence and reactivation in human neurons. Induced pluripotent stem (iPS) celltechnologies offer an unprecedented opportunity to generate unlimited supplies of neurons and the facility to manipulate such cells in vitro. In this study, we developed an in vitro HSV-1 infection model in human iPS-derived neurons, which displays the main hallmarks of latency defined in animal models and in humans. Our results show for the first time that: i) persistent infection cannot be established in neural progenitor cells (NPCs); ii) the ability of HSV-1 to establish persistent infection is extended to glutamatergic neurons, and not limited to sensory neurons; iii) in neuronal cultures persistently infected with HSV-1, viral genome is localized at the nuclear periphery; iv) HSV-1 acute infection reduces RNA editing at the GluRB site. These results highlight the importance of iPS-based platforms to elucidate unknown aspects of HSV-1 quiescence in human neurons. NPCs were 70-80% confluence
2014-05-02 | E-GEOD-46042 | biostudies-arrayexpress
Project description:Herpes simplex virus type 1 (HSV-1) is a 152 Kb double stranded DNA alpha-herpesvirus, which establishes long life latent infection in sensory neurons. Most of our knowledge regarding HSV-1 latency comes from in vivo studies using small animal models, mainly rodents and rabbits, which are not naturally infected by HSV-1. Furthermore, these animal models do not fully recapitulate the species specific effects of human HSV-1 infection. Human cellular models utilize trigeminal ganglia removed from cadavers or, alternatively, neuron-like cells derived from cancerous cell lines that do not fully reflect effects on normal human neurons. This limitation poses the need to develop an in vitro model to investigate molecular details of the mechanisms underlying latency and reactivation in human neurons. Induced pluripotent stem (iPS) cell technologies offer an unprecedented opportunity to generate unlimited supplies of neurons and the facility to manipulate such cells in vitro. In this study, we developed an in vitro HSV-1 infection model in human iPS-derived neural progenitor cells (NPCs) and neurons, which displays the main hallmarks of latency defined in animal models and in humans. Induced pluripotent stem (iPS) cells were generated from human skin biopsy samples
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Project description:Herpes simplex virus type 1 (HSV-1) is a 152 Kb double stranded DNA alpha-herpesvirus, which establishes long life latent infection in sensory neurons. Most of our knowledge regarding HSV-1 latency comes from in vivo studies using small animal models, mainly rodents and rabbits, which are not naturally infected by HSV-1. Furthermore, these animal models do not fully recapitulate the species specific effects of human HSV-1 infection. Human cellular models utilize trigeminal ganglia removed from cadavers or, alternatively, neuron-like cells derived from cancerous cell lines that do not fully reflect effects on normal human neurons. This limitation poses the need to develop an in vitromodel to investigate molecular details of the mechanisms underlying quiescence and reactivation in human neurons. Induced pluripotent stem (iPS) celltechnologies offer an unprecedented opportunity to generate unlimited supplies of neurons and the facility to manipulate such cells in vitro. In this study, we developed an in vitro HSV-1 infection model in human iPS-derived neurons, which displays the main hallmarks of latency defined in animal models and in humans. Our results show for the first time that: i) persistent infection cannot be established in neural progenitor cells (NPCs); ii) the ability of HSV-1 to establish persistent infection is extended to glutamatergic neurons, and not limited to sensory neurons; iii) in neuronal cultures persistently infected with HSV-1, viral genome is localized at the nuclear periphery; iv) HSV-1 acute infection reduces RNA editing at the GluRB site. These results highlight the importance of iPS-based platforms to elucidate unknown aspects of HSV-1 quiescence in human neurons.
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Project description:Differentiated NT2 cells are a potentially useful model system to study herpes simples virus (HSV) replication in human neurons. These cells can be irreversibly differentiated into NT-neurons in the presence of retinoic acid and non-dividing cultures NT-neurons can be maintained for up to several months without retinoic acid. HSV is capable of infecting and replicating in differentiated NT-neurons and thus differentiated NT-neurons provide a ready source of human post-mitotic cells which can be useful to study certain aspects of the interaction of HSV and the neuron. Microarray analysis was used to examine how HSV-1 infection modulates cellular transcription in human NT-neurons, focusing on changes that take place during the first 24 hours following infection and compared to changes resulting from infection with inactivated virus. In addition, the transcriptional changes resulting from virus infection of neurons were compared to those observed in primary human fibroblasts. At early times after HSV infection a small number of cellular transcripts in NT-Neurons appear to be increased in abundance. Most of these transcripts that are up-regulated after infection are not unique to neuronal cells, and possibly represent a common cellular response to HSV infection. A few transcripts were not detected in infected human fibroblasts and may represent part of a transcriptional profile specific to this type of human neuronal cell. In contrast to the situation at early times after infection, analysis of cellular transcripts in NT-neurons at late times after infection is complicated by the overall profound decrease in cellular transcription. Thus, microarray analysis appeared to be most useful as a screening method for transcription changes following infection at early times after virus infection of NT-neurons. Two-condition experiment, HSV-1 infected versus uninfected NTNeurons, 4 independent biological replicate sets (uninfected/infected) in dual channel array setup (Cy3/Cy5).
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Project description:Differentiated NT2 cells are a potentially useful model system to study herpes simples virus (HSV) replication in human neurons. These cells can be irreversibly differentiated into NT-neurons in the presence of retinoic acid and non-dividing cultures NT-neurons can be maintained for up to several months without retinoic acid. HSV is capable of infecting and replicating in differentiated NT-neurons and thus differentiated NT-neurons provide a ready source of human post-mitotic cells which can be useful to study certain aspects of the interaction of HSV and the neuron. Microarray analysis was used to examine how HSV-1 infection modulates cellular transcription in human NT-neurons, focusing on changes that take place during the first 24 hours following infection and compared to changes resulting from infection with inactivated virus. In addition, the transcriptional changes resulting from virus infection of neurons were compared to those observed in primary human fibroblasts. At early times after HSV infection a small number of cellular transcripts in NT-Neurons appear to be increased in abundance. Most of these transcripts that are up-regulated after infection are not unique to neuronal cells, and possibly represent a common cellular response to HSV infection. A few transcripts were not detected in infected human fibroblasts and may represent part of a transcriptional profile specific to this type of human neuronal cell. In contrast to the situation at early times after infection, analysis of cellular transcripts in NT-neurons at late times after infection is complicated by the overall profound decrease in cellular transcription. Thus, microarray analysis appeared to be most useful as a screening method for transcription changes following infection at early times after virus infection of NT-neurons. Two-condition experiment, HSV-1 infected versus uninfected fibroblasts, 3 independent biological replicate sets (uninfected/infected) in dual channel array setup (Cy3/Cy5).
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Project description:Differentiated NT2 cells are a potentially useful model system to study herpes simples virus (HSV) replication in human neurons. These cells can be irreversibly differentiated into NT-neurons in the presence of retinoic acid and non-dividing cultures NT-neurons can be maintained for up to several months without retinoic acid. HSV is capable of infecting and replicating in differentiated NT-neurons and thus differentiated NT-neurons provide a ready source of human post-mitotic cells which can be useful to study certain aspects of the interaction of HSV and the neuron. Microarray analysis was used to examine how HSV-1 infection modulates cellular transcription in human NT-neurons, focusing on changes that take place during the first 24 hours following infection and compared to changes resulting from infection with inactivated virus. In addition, the transcriptional changes resulting from virus infection of neurons were compared to those observed in primary human fibroblasts. At early times after HSV infection a small number of cellular transcripts in NT-Neurons appear to be increased in abundance. Most of these transcripts that are up-regulated after infection are not unique to neuronal cells, and possibly represent a common cellular response to HSV infection. A few transcripts were not detected in infected human fibroblasts and may represent part of a transcriptional profile specific to this type of human neuronal cell. In contrast to the situation at early times after infection, analysis of cellular transcripts in NT-neurons at late times after infection is complicated by the overall profound decrease in cellular transcription. Thus, microarray analysis appeared to be most useful as a screening method for transcription changes following infection at early times after virus infection of NT-neurons. Two-condition experiment, NTNeurons infected with inactivated HSV-1 versus uninfected NTNeurons, 4 independent biological replicate sets (uninfected/infected) in dual channel array setup (Cy3/Cy5).
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